private Goal(string title, DateTime deadline, IEnumerable <Subtask> subtasks, Rank rank, GoalStatus goalStatus)
{
Title = title;
Deadline = deadline;
Subtasks = subtasks;
Rank = rank;
GoalStatus = goalStatus;
}
public static Result <Goal> Create(string title, Rank rank, GoalStatus goalStatus, IEnumerable <Subtask> subtasks,
DateTime?deadline)
{
if (string.IsNullOrEmpty(title))
{
return(Result.Failure <Goal>("A goal needs a title"));
}
if (rank == null)
{
return(Result.Failure <Goal>($"{nameof(rank)} can not be null"));
}
if (goalStatus == null)
{
return(Result.Failure <Goal>($"{nameof(goalStatus)} can not be null"));
}
return(new Goal(title, deadline ?? default, subtasks ?? Array.Empty <Subtask>(), rank, goalStatus));
}
public void SetGoalStatus(GoalStatus newStatus)
{
GoalStatus = newStatus ?? throw new ArgumentNullException(nameof(newStatus), "GoalStatus can not be null");
}
